The place is called backwaters because the lake water is actually fresh river water that comes down from the river and is then used for the paddy fields whenever the need be, and later the lake water as it goes ahead, merges with the ocean in Kochi.

What are called backwaters?

From Wikipedia, the free encyclopedia. A backwater is a part of a river in which there is little or no current. It can refer to a branch of a main river, which lies alongside it and then rejoins it, or to a body of water in a main river, backed up by the tide or by an obstruction such as a dam.

What is the meaning of back water lake?

Definitions of backwater. a body of water that was created by a flood or tide or by being held or forced back by a dam. “the bayous and backwaters are breeding grounds for mosquitos” type of: body of water, water. the part of the earth's surface covered with water (such as a river or lake or ocean)